Construction structure for metal conduit to penetrate through building deformation joint

Abstract

The utility model discloses a construction structure for a metal conduit to penetrate through a building deformation joint, and relates to the technical field of building construction. Comprising a junction box, a flexible metal wire protection tube and a grounding wire. The two ends of the flexible metal wire protection tube are respectively connected with a junction box through a metal hose external tooth joint; a grounding wire passes through the junction box at one end to the junction box at the other end; fastening pipe lock nut joint preformed holes are formed in the floor support plate side vertical plates on the two sides of the telescopic settlement joint, and fastening pipes are pre-buried in the floor support plate. The sides, away from each other, of the two junction boxes are connected to the fastening pipe lock nut joint preformed holes in the two sides through fastening pipe lock nut joints respectively. The fastening pipe lock nut joint is connected with the fastening pipe; the fastening pipe lock nut joint is provided with a processing hole, and the end part of the grounding wire penetrates out of the processing hole; according to the structure, a relay junction box does not need to be arranged, the connection and installation of the flexible metal wire protection tube and the junction box are simpler and more convenient, and the overall difficulty of construction is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a construction structure where a metal conduit passes through a deformation joint of a building. Background Art

[0002] There are two existing construction structures for metal conduits to pass through building deformation joints: one is open laying and the other is concealed laying. Figure 1 As shown, this is the construction method of exposed metal conduits passing through the expansion joints of buildings. This method is a secondary piping method and is not applicable to areas with strict fire protection requirements. Figure 1 In the exposed structure, the steel wire pipe 1 is located outside the floor deck 7, and the end of the steel wire pipe 1 is connected to the junction box 3 through the lock nut 2. The junction box 3 is provided with a junction box connector 4 on one side adjacent to the expansion and settlement joint 9; the flexible metal wire protection tube 5 and the grounding wire 8 are connected between the junction box connectors 4 on both sides. This structure is a secondary piping method and is not applicable to areas with strict fire protection requirements.

[0003] like Figure 2 As shown, this is the common practice of existing concealed metal conduits passing through expansion joints of buildings. General fire protection engineering piping has strict requirements on fire protection, and generally the main body concealed metal conduits are used for construction. Figure 2 In the embodiment, the junction box 3 buried in the concrete of the floor slab 7 needs to be installed with a relay junction box 6, and the flexible metal wire protection tube 5 is installed by the relay junction boxes 6 on both sides. Figure 2 The construction difficulty of the concealed structure is that the installation and construction of the jumper protection connecting conductor between the wire steel pipe 1 and the junction box 3, and between the junction box 3 and the relay junction box 6 is difficult. The jumper protection connecting conductor between the wire steel pipe 1 and the junction box 3 is in the concrete, and the jumper protection connecting conductor between the junction box 3 and the relay junction box 6 is in the junction box 3. The connection terminals 10 at the two places have certain requirements, and the construction is extremely inconvenient. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art, proposes a construction structure for a metal conduit to pass through a deformation joint of a building, and solves the problem of construction difficulties in a concealed structure.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions.

[0006] A construction structure for a metal conduit to pass through a building deformation joint, comprising a junction box, a flexible metal wire protection tube, a grounding wire, a metal hose male joint and a fixing pipe lock female joint, wherein both ends of the flexible metal wire protection tube are connected to a junction box via a metal hose male joint respectively; the grounding wire passes through the junction box at one end to the junction box at the other end; reserved holes for fixing pipe lock female joints are provided on the side vertical plates of the floor decking on both sides of the expansion and settlement joint, and fixing pipes are pre-buried in the floor decking; the sides of the two junction boxes that are far away from each other are connected to the reserved holes for fixing pipe lock female joints on both sides via fixing pipe lock female joints respectively; the fixing pipe lock female joint is connected to the fixing pipe; the fixing pipe lock female joint is provided with a processing hole, and the end of the grounding wire passes through the processing hole.

[0007] Furthermore, the junction box is connected to the side plate of the floor deck through a screw and nut assembly.

[0008] Furthermore, the connection between the set tube lock nut joint and the set tube is connected by a set screw.

[0009] Furthermore, the outside of the connection between the set tube lock female joint and the set tube is heat-shrink-sealed by a heat-shrink tube.

[0010] Furthermore, the processing hole is arranged at the top of the tube locking female joint.

[0011] Furthermore, the junction box is an exposed 86 galvanized metal wire box, a reserved hole for a locking female connector of a set pipe is provided on one side of the junction box, and a reserved hole for a metal hose male connector is provided on the other side of the junction box.

[0012] Furthermore, the surface-mounted 86 galvanized metal wire box is provided with an opening, and the opening is arranged downward.

[0013] Furthermore, the end of the grounding wire is fixed to the fixing pipe through a galvanized grounding clamp.

[0014] The beneficial effects of the utility model compared with the prior art are:

[0015] The utility model aims at the shortcomings of the construction structure of concealed metal conduits passing through the deformation joints of buildings, and improves the concealed structure. The flexible metal wire protection tube is directly connected to the two junction boxes through the metal hose external thread joint, and the junction box is directly connected to the fixing tube through the fixing tube lock nut joint, so that the grounding wire is directly laid through the metal hose external thread joint, the flexible metal wire protection tube, the junction box, the fixing tube lock nut joint, and the fixing tube, and there is no need to set up a relay junction box. The connection and installation of the flexible metal wire protection tube and the junction box are also simpler, which reduces the overall difficulty of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the construction structure of the existing exposed metal conduit passing through the building deformation joint;

[0017] Figure 2 This is a schematic diagram of the construction structure where the existing concealed metal conduit passes through the building deformation joint;

[0018] Figure 3 This is a front view of the construction structure where the metal conduit of the utility model passes through the deformation joint of the building;

[0019] Figure 4 It is a top view of the construction structure where the metal conduit of the utility model passes through the deformation joint of the building;

[0020] In the figure: 1- steel pipe for electric wires, 2- lock nut, 3- junction box, 4- junction box connector, 5- flexible metal wire protection tube, 6- relay junction box, 7- floor decking, 8- grounding wire, 9- expansion and settlement joint, 10- wiring terminal, 11- metal hose external thread joint, 12- locking nut joint for setting tube, 13- processed hole, 14- screw and nut assembly, 15- setting tube, 16- heat shrink tube, 17- setting screw, 18- galvanized grounding card. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail in combination with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solution of the present invention is described in detail below in combination with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0022] See also Figure 3 and Figure 4 As shown, the utility model proposes a construction structure for a metal conduit to pass through a building deformation joint, including two junction boxes 3, a flexible metal wire protection tube 5, a grounding wire 8, two metal hose external thread joints 11, two set tube lock female joints 12 and two set tubes 15. The junction box 3 is an open-mounted 86 galvanized metal wire box, which is provided with an opening, and the opening is arranged downward. A reserved hole for the set tube lock female joint is provided on one side of the junction box 3, and a reserved hole for the metal hose external thread joint is provided on the other side of the junction box 3.

[0023] The two ends of the flexible metal wire protection tube 5 are respectively connected to a metal hose external thread connector reserved hole on a junction box 3 through a metal hose external thread connector 11; the ground wire 8 passes through the junction box 3 at one end to the junction box 3 at the other end.

[0024] The side vertical plates of the floor decking 7 on both sides of the expansion and settlement joint 9 are provided with reserved holes for fixing pipe lock nut joints, and fixing pipes 15 are pre-buried in the floor decking 7 on both sides; the fixing pipe lock nut joint reserved holes of the two junction boxes 3 are respectively connected to the fixing pipe lock nut joint reserved holes on the side vertical plates of the floor decking 7 on both sides through a fixing pipe lock nut joint 12; and the junction box 3 is fixedly connected to the side vertical plates of the floor decking 7 through a screw and nut assembly 14.

[0025] The other end of the set tube lock female joint 12 is connected to the set tube 15 by a set screw 17. The connection between the set tube lock female joint 12 and the set tube 15 is sealed by a heat shrink tube 16. The heat shrink tube 16 is baked with a hot air gun to conceal the set tube lock female joint 12 to prevent concrete leakage. A processing hole 13 is provided on the top of the set tube lock female joint 12. The end of the grounding wire 8 passes through the processing hole 13. After passing through, the end of the grounding wire 3 is fixed to the set tube 15 by a galvanized grounding clamp 18.

[0026] In this embodiment, it is recommended to use the hole-free type for the exposed 86 galvanized metal wire box. Two are used for each expansion position. The holes can be opened by yourself during installation. The height H40 or H50 can be used. If the hole-free type is not available, the ordinary type can also be used. The locking nut joint 12 of the fixing pipe uses an iron galvanized wire pipe locking nut joint (matching the diameter of the fixing pipe, buy the extended type), and two are used for each expansion position; the galvanized grounding card 18 matching the diameter of the fixing pipe 15 is used for each expansion position; the grounding wire 8 uses a 2.5 square millimeter, yellow-green grounding wire, 0.5 meters in length, with a 5mm hole terminal connector, and one is used for each expansion position; the heat shrink tube 16 uses ∅50, 80mm in length, and 2 sections are used for each expansion position; the screw nut assembly 14 uses bolts and nuts with a specification of M4× (about 20mm) (used to fix the 86 wire box), and 4 sets are used for each expansion position; the metal hose external thread joint 11 uses a specification of ∅25, and 2 are used for each expansion position. Flexible metal wire protection tube 5, each section is about 180mm, determined according to the width of the expansion joint, hose length = expansion joint width - wire box width × 2 + free deformation expansion amount = 300-86×2+50, use 1 section for each expansion point.

[0027] The tools used in processing include: hot air gun, electric screwdriver, twist drill bit ∅5, hole opener 27mm, 1 piece (the hole diameter can be 2mm larger than the outer diameter of the fixing tube ∅25, and it can be installed with a fixing tube lock nut joint); hole opener 34mm, 1 piece (used for opening holes in metal hose joints).

[0028] The construction method of the above construction structure is:

[0029] 1. Use a hole opener to process the reserved hole for the female joint of the set pipe lock on one side of the exposed 86 galvanized metal wire box (holeless type), and the reserved hole for the external thread joint of the metal hose on the other side;

[0030] 2. Use the processed surface-mounted 86 galvanized metal wire box to prefabricate and connect the flexible metal wire protection tube 5 through the metal hose external thread connector 11;

[0031] 3. Pass the yellow-green ground wire through the junction box 3 at one end and to the junction box 3 at the other end to make a wire threading reservation;

[0032] 4. According to the drawing, pass the flexible metal wire protection tube 5 through the expansion and settlement joint 9, and use a hole opener to process the reserved holes for the locking female joints of the fixing tubes on the side vertical plates of the floor decking 7 on both sides of the expansion and settlement joint 9;

[0033] 5. Install and fix the processed junction box assembly at the expansion and settlement joint 9 through the set tube lock nut joint 12, and use a ∅5 twist drill to machine a processing hole 13 above the set tube lock nut joint 12;

[0034] 6. Use a ∅5 twist drill bit to drill a hole at the contact position between the junction box 3 and the side vertical plate of the floor deck 7, and install the screw and nut assembly 14. At the same time, pass the yellow-green grounding wire through the processed hole 13 of the set pipe lock female joint 12;

[0035] 7. Insert the heat shrink tube 16 into the set tube 15, and then install and fix the set tube 15 in the set tube lock nut 12 through the set screw 17. Use the galvanized grounding card 18 to bridge and fix the yellow-green grounding wire, and use a multimeter to test the conductivity of the set tubes at both ends of the expansion joint.

[0036] 8. After the test is passed, move the pre-installed heat shrink tube 16 to the tight tube lock nut joint 12, use a hot air gun to bake the heat shrink tube 16, conceal the tight tube lock nut joint, and prevent concrete leakage.

[0037] The above content is a further detailed description of the utility model in combination with a specific preferred implementation method. It cannot be determined that the specific implementation methods of the utility model are limited to this. For ordinary technicians in the technical field to which the utility model belongs, they can make several simple deductions or substitutions without departing from the utility model, which should be regarded as belonging to the utility model and the scope of patent protection determined by the submitted claims.

Claims

1. A construction structure for a metal conduit to pass through a building deformation joint, characterized in that: The invention comprises a junction box (3), a flexible metal wire protection tube (5), a grounding wire (8), a metal hose external thread joint (11) and a fixing tube lock nut joint (12), wherein the two ends of the flexible metal wire protection tube (5) are respectively connected to a junction box (3) through a metal hose external thread joint (11); the grounding wire (8) passes through the junction box (3) at one end to the junction box (3) at the other end; a fixing tube lock nut joint reserved hole is provided on the side vertical plate of the floor decking (7) on both sides of the expansion and settlement joint (9), and a fixing tube (15) is pre-buried in the floor decking (7); the two sides of the two junction boxes (3) that are far away from each other are respectively connected to the fixing tube lock nut joint reserved holes on both sides through the fixing tube lock nut joint (12); the fixing tube lock nut joint (12) is connected to the fixing tube (15); the fixing tube lock nut joint (12) is provided with a processing hole (13), and the end of the grounding wire (8) passes through the processing hole (13).

2. The construction structure of a metal conduit passing through a building deformation joint according to claim 1 is characterized in that: The junction box (3) is connected to the side plate of the floor deck (7) via a screw and nut assembly (14).

3. The construction structure of a metal conduit passing through a building deformation joint according to claim 1 is characterized in that: The connection between the set tube lock nut joint (12) and the set tube (15) is connected via a set screw (17).

4. The construction structure of a metal conduit passing through a building deformation joint according to claim 3 is characterized in that: The outside of the connection between the set tube lock nut joint (12) and the set tube (15) is heat-shrink-sealed by a heat-shrink tube (16).

5. The construction structure of a metal conduit passing through a building deformation joint according to claim 1 is characterized in that: The processing hole (13) is arranged on the top of the set tube lock female joint (12).

6. The construction structure of a metal conduit passing through a building deformation joint according to claim 1 is characterized in that: The junction box (3) is a surface-mounted 86 galvanized metal wire box, a reserved hole for a set pipe lock female joint is provided on one side of the junction box (3), and a reserved hole for a metal hose male thread joint is provided on the other side of the junction box (3).

7. The construction structure of a metal conduit passing through a building deformation joint according to claim 6 is characterized in that: The surface-mounted 86 galvanized metal wire box is provided with an opening, and the opening is arranged downward.

8. The construction structure of a metal conduit passing through a building deformation joint according to claim 1 is characterized in that: The end of the grounding wire (8) is fixed to the fixing tube (15) through a galvanized grounding clamp (18).

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